Following the success of his New York Times best seller, Until Tuesday, Iraq War veteran Luis Carlos Montalván takes to the road with his beloved golden retriever service dog, Tuesday, advocating for America's wounded warriors and for each other.

Luis' first book sparked a national conversation about service dogs and PTSD. In this spectacular new memoir, he and Tuesday bring their healing mission to the next level, showing how these beautifully trained animals can assist soldiers, veterans, and many others with disabilities. Rescuing a forgotten Tuskegee airman. Battling obstinate VA bureaucrats. Delivering solace to troubled war heroes and their families. Everywhere these two go, they highlight the miraculous talents of service dogs.

As Luis and Tuesday celebrate exhilarating victories, a grave obstacle threatens to derail their life-saving campaign. Though Luis has made great progress battling his own PTSD, his physical wounds risk leaving him wheelchair-bound. He must decide whether to amputate his leg and carry on with a bionic prosthesis. Even as he struggles with this dramatic decision, he and 10-year-old Tuesday prepare to welcome a female golden retriever puppy to their all-male pack.

As this stirring memoir neared publication, Luis Montalván took his own life in December 2016 - another terrible tragedy of the invisible wounds of war. This book is his last letter of love to his best friend, Tuesday, and to veterans, friends, and fellow dog lovers everywhere.

Never more timely than now, Tuesday's Promise is an inspiring story of love, service, teamwork, and the remarkable bond between humans and canines.